Just an add on to the information that others have already posted.
When I was in radiation (a lifetime ago) and the emotions were really hitting me hard, and the hot flashes made me want to lay in a tub of ice, I started sertraline. The older drug Zoloft. I started on 100 mg and I was on it for years. Weaned off after 6 or 7 years. A few years ago when things got really tough again, I went back on it, and I immediately recognized a decrease in hot flashes. I will probably just stay on it this time as I cannot think of a good reason to go back to just struggling along emotionally, the decrease in hot flashes is a really great bonus.
Talk to your doctor and make sure you find the right drug for you. If a cancer patient can’t take an antidepressant n without worrying about quitting it later, who can?